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Strategic Edge. Resilient Wins.

  • Strategic Advisory
  • Business Transformation
  • Operational Excellence

Our Services

Operational Excellence

From streamlining workflows to revolutionising supply chains, we diagnose inefficiencies and deliver solutions that reduce costs, accelerate performance, and build resilience.

Veterans Transition Centre

Our Centre of Excellence helps defence personnel - especially those below officer rank -successfully transition to rewarding civilian careers.

Why Organizations Choose Zentra

Practical Wisdom

Three decades plus of hands-on experience across military logistics and corporate operations.
We've solved the problems you're facing-not in theory, but in practice.

Proven Results

Low cost, high value, lasting impact.
We focus on outcomes that matter-improved efficiency, reduced costs, stronger teams, sustainable growth.

Personal Commitment

From discovery to implementation and beyond, we stay engaged.
Your success is our mission. Extended support ensures solutions stick.

Traditional Consulting Model

Big consulting firms send 25-year-old analysts with theories from business school with Limited real-world experience.

Zentra brings 35+ years of proven expertise from someone who’s revolutionised Store & Warehouse  operations across multiple sites, managed complex supply chains, and transformed organizations from the inside.

The Zentra Difference

01.Discipline

Military discipline meets corporate agility

02.Strategy

Strategy AND implementation-we don’t just advise, we execute

03.Hands-on

Hands-on support throughout your transformation journey

04.Pricing

Accessible expertise without the big-firm premium

How We Work With You

Discovery

Initial conversations to understand your challenges, goals, and organizational context.

Diagnosis

Detailed assessment identifying root causes, gaps, and opportunities for improvement.

Design

Co-creating tailored solutions with clear deliverables, timelines, and success metrics.

Delivery

Hands-on implementation support, working alongside your team to execute effectively.

Deployment

Testing, commissioning, and ensuring solutions integrate seamlessly into operations.

Development

Extended handholding post-completion, refining approaches and building internal capability.

Expertise Built Over Decades

Military

  • 31 years leading logistics operations in the Indian Army Service Corps
  • Managed complex supply chains across extreme environments—mountains, deserts, and conflict zones
  • Built and led high-performing teams through combat operations and counter-terrorism missions

Corporate

  • Established and operationalized 4.5 million sq ft of premier built-to-suit warehousing infrastructure across 13 facilities in seven locations nationwide, as Head BTS Services at Mahindra Logistics Ltd(MLL).
  • Cluster Head, North India, AFS, MLL comprehensive 3PL operations for two Mahindra & Mahindra automotive manufacturing plants, managing 150+ personnel at each location

Consulting

  • Currently transforming 60+ infrastructure project sites pan-India from a Stores & Inventory Management perspective.
  • Building governance, not just advising for Property & Asset management as part of Facilities Management
  • Living the transformation daily

Professional Credentials

Business Continuity & Risk Management

Member of the Business Continuity Institute (MBCI)

Certified Risk Management Professional (CRMP)

ISO 31000/ISO 27001/ISO 22301 Certified Risk Management

Operations & Process Excellence

Project Management Professional (PMP)

Lean Six Sigma Green Belt

Certified Scrum Master

Delivering Measurable Impact

Col KR Sivaraman (Veteran)

Head of Workplace Services India | Northern Trust Corporation

MSc | MCR | MRICS

I have known Zahl since our Army Service Corps days. Even then, he demonstrated the qualities that define him today: meticulous attention to detail, an ability to see systems rather than just tasks, and an unwavering commitment to getting things done right. 

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Tejesh Karampudi

Vice President & Head of Corporate Strategy | e2E Rail | Author

IIT Bhubaneswar | IIM Kozhikode (Exec MBA)

Working alongside Col. Zahl in the Senior Leadership Team at ETIL has been genuinely enriching. While I drove our digital transformation journey through MS Dynamics ERP implementation, Col.Zahl was building 

Read More

Col Sandeep Sharma (Veteran)

Associate Vice President | Sattva|

MSc | MPhil | MRICS

 

Transitioning from the Army to corporate India is never easy. When Zahl made that move after 31 years of distinguished service in the Army Service Corps, I was privileged to be one of his guides in navigating this new terrain.

Read More

Asha Sampath

Founder, Brand Horizon | Independent Director (SEBI-governed Boards) Toyota Financial Services | GlobalSpace Technologies | Shradha Infraprojects

I have had the opportunity to engage with Col.Zahl Tantra professionally and observe his thinking on operational transformation and supply chain governance.

Read More

Ready to Transform Your Operations?

Whether you’re facing operational challenges, planning strategic initiatives, or seeking to optimize performance, Zentra Consulting brings the expertise and commitment to help you succeed.

Let's discuss how we can support your goals.

Schedule Free Consultation
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Col KR Sivaraman (Veteran)

Head of Workplace Services India | Northern Trust Corporation MSc | MCR | MRICS

I have known Zahl since our Army Service Corps days. Even then, he demonstrated the qualities that define him today: meticulous attention to detail, an ability to see systems rather than just tasks, and an unwavering commitment to getting things done right. When he decided to transition to the corporate world, I had no doubt he would succeed.

What he has accomplished since has exceeded even those expectations. At Mahindra Logistics, he built the Built-to-Suit Services function managing millions of square feet of warehousing. Again he excelled at his role as Cluster Head, North for the AFS segment of MLL seamlessly  running two large teams for 3PL support to M&M auto manufacturing plants in Uttarakhand. Presently at ETIL on a consultancy assignment, he has single-handedly established governance frameworks for inventory management and facilities across a nationwide portfolio of railway infrastructure projects.

I have personally guided several veterans in their corporate transitions, and Zahl stands out for how thoughtfully he has adapted military discipline to corporate contexts without losing effectiveness. His proposed Veterans Transition Centre and pro-bono mentoring work reflects his commitment to giving back.

For any organization seeking to transform their operations, supply chain, or facilities management function, Zahl brings a rare combination of strategic thinking and execution capability forged through three and a half  decades of progressively responsible assignments.

Tejesh Karampudi

Vice President & Head of Corporate Strategy | e2E Rail |
IIT Bhubaneswar | IIM Kozhikode (Exec MBA) | Author

Working alongside Col. Zahl in the Senior Leadership Team at ETIL has been genuinely enriching. While I drove our digital transformation journey through MS Dynamics ERP implementation, Col.Zahl was building something equally foundational on the operational side: a comprehensive governance framework for Inventory Management and Store Accounting that our organization had long needed.

What struck me most was his approach. He did not simply impose processes from his military experience onto our railway infrastructure context. He took time to understand our unique operational challenges across 60+ project sites, then methodically crafted policies, manuals, and training systems that actually work on the ground. When he recently took on Facilities Management in addition to his existing portfolio, he brought the same systematic rigour to property lifecycle management.

His ability to translate complex operational challenges into structured governance frameworks is rare. For organizations in infrastructure, logistics, or manufacturing seeking to professionalize their inventory and asset management functions, Col. Zahl Tantra brings a practitioner’s depth that consulting firms often lack.

Col Sandeep Sharma (Veteran)

Associate Vice President | Sattva|
MSc | MPhil | MRICS

Transitioning from the Army to corporate India is never easy. When Zahl made that move after 31 years of distinguished service in the Army Service Corps, I was privileged to be one of his guides in navigating this new terrain.

What I observed was someone who did not simply seek to transplant military methods into corporate settings. He invested time in understanding corporate dynamics, obtained relevant certifications like MBCI, PMP and CRMP, and built genuine expertise in domains like warehousing, supply chain, and facilities management. His tenure at Mahindra Logistics and now at ETIL on a consultancy mode reflects this thoughtful evolution.

More importantly, Col. Zahl has never forgotten the veteran community. His pro-bono mentoring through the proposed Veterans Transition Centre will be  helpful to  numerous transitioning officers and Personnel Below Officers Ranks to find their footing in corporate India.

The launch of Zentra Consulting is a natural next step. He brings strategic insight grounded in real operational experience, not theoretical frameworks disconnected from implementation realities. For organizations seeking genuine transformation in their operations and supply chain functions, Zahl is someone who has done the work himself, not merely advised from the sidelines.

Asha Sampath

Founder, Brand Horizon | Independent Director (SEBI-governed Boards) Toyota Financial Services | GlobalSpace Technologies | Shradha Infraprojects

I have had the opportunity to engage with Col.Zahl Tantra professionally and observe his thinking on operational transformation and supply chain governance. What differentiates him from many consultants is the unusual combination of three decades of military logistics leadership, hands-on corporate experience at organizations like Mahindra Logistics, and a genuine commitment to building institutional capability rather than creating consultant dependency.

His credentials are impressive: PMP, CRMP (the first Indian Defence Forces officer to earn this certification), aspirant for a PhD while maintaining an active corporate role. But what truly sets him apart is his clarity of thought and his ability to distil complex operational challenges into actionable frameworks.

Corporate India, particularly in infrastructure, manufacturing, and logistics sectors, needs practitioners who understand the ground realities of managing dispersed operations, building governance systems from scratch, and driving change in organizations with entrenched ways of working. Zentra Consulting addresses this gap meaningfully. I see significant potential for Col.Zahl’s practice to contribute to operational excellence in Indian industry.